/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.server.component.index;

import org.sonar.api.config.Configuration;
import org.sonar.api.config.internal.MapSettings;
import org.sonar.server.es.Index;
import org.sonar.server.es.IndexDefinition;
import org.sonar.server.es.IndexType;
import org.sonar.server.es.newindex.DefaultIndexSettingsElement;
import org.sonar.server.es.newindex.NewAuthorizedIndex;
import org.sonar.server.es.newindex.TypeMapping;

import static org.sonar.server.es.newindex.DefaultIndexSettingsElement.SEARCH_GRAMS_ANALYZER;
import static org.sonar.server.es.newindex.DefaultIndexSettingsElement.SEARCH_PREFIX_ANALYZER;
import static org.sonar.server.es.newindex.DefaultIndexSettingsElement.SEARCH_PREFIX_CASE_INSENSITIVE_ANALYZER;
import static org.sonar.server.es.newindex.DefaultIndexSettingsElement.SORTABLE_ANALYZER;
import static org.sonar.server.es.newindex.SettingsConfiguration.MANUAL_REFRESH_INTERVAL;
import static org.sonar.server.es.newindex.SettingsConfiguration.newBuilder;
import static org.sonar.server.permission.index.IndexAuthorizationConstants.TYPE_AUTHORIZATION;

import javax.inject.Inject;

public class ComponentIndexDefinition implements IndexDefinition {

  public static final Index DESCRIPTOR = Index.withRelations("components");
  public static final IndexType.IndexRelationType TYPE_COMPONENT = IndexType.relation(IndexType.main(DESCRIPTOR, TYPE_AUTHORIZATION), "component");
  public static final String FIELD_UUID = "uuid";
  public static final String FIELD_KEY = "key";
  public static final String FIELD_NAME = "name";
  public static final String FIELD_QUALIFIER = "qualifier";

  private static final int DEFAULT_NUMBER_OF_SHARDS = 5;
  private final int numberOfShards;

  static final DefaultIndexSettingsElement[] NAME_ANALYZERS = {SORTABLE_ANALYZER, SEARCH_PREFIX_ANALYZER, SEARCH_PREFIX_CASE_INSENSITIVE_ANALYZER, SEARCH_GRAMS_ANALYZER};

  private final Configuration config;
  private final boolean enableSource;

  private ComponentIndexDefinition(Configuration config, boolean enableSource, int numberOfShards) {
    this.config = config;
    this.enableSource = enableSource;
    this.numberOfShards = numberOfShards;
  }

  @Inject
  public ComponentIndexDefinition(Configuration config) {
    this(config, false, DEFAULT_NUMBER_OF_SHARDS);
  }

  /**
   * Keep the document sources in index so that indexer tests can verify content
   * of indexed documents.
   */
  public static ComponentIndexDefinition createForTest() {
    // different shards can have different scoring, affecting tests, so we use a single shard
    return new ComponentIndexDefinition(new MapSettings().asConfig(), true, 1);
  }

  @Override
  public void define(IndexDefinitionContext context) {
    NewAuthorizedIndex index = context.createWithAuthorization(
      DESCRIPTOR,
      newBuilder(config)
        .setRefreshInterval(MANUAL_REFRESH_INTERVAL)
        .setDefaultNbOfShards(numberOfShards)
        .build())
      .setEnableSource(enableSource);

    TypeMapping mapping = index.createTypeMapping(TYPE_COMPONENT);
    mapping.keywordFieldBuilder(FIELD_UUID).disableNorms().build();
    mapping.keywordFieldBuilder(FIELD_KEY).addSubFields(SORTABLE_ANALYZER).build();
    mapping.textFieldBuilder(FIELD_NAME)
      .withFieldData()
      // required by highlighting
      .store()
      .termVectorWithPositionOffsets()
      .addSubFields(NAME_ANALYZERS)
      .build();

    mapping.keywordFieldBuilder(FIELD_QUALIFIER).build();
  }
}
